<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Set the effective GID of the current process</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.posix-mknod.html">posix_mknod</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.posix-seteuid.html">posix_seteuid</a></div> <div class="up"><a href="ref.posix.html">POSIX Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="function.posix-setegid" class="refentry"> <div class="refnamediv"> <h1 class="refname">posix_setegid</h1> <p class="verinfo">(PHP 4 >= 4.0.2, PHP 5)</p><p class="refpurpose"><span class="refname">posix_setegid</span> — <span class="dc-title">Set the effective GID of the current process</span></p> </div> <div class="refsect1 description" id="refsect1-function.posix-setegid-description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">bool</span> <span class="methodname"><strong>posix_setegid</strong></span> ( <span class="methodparam"><span class="type">int</span> <code class="parameter">$gid</code></span> )</div> <p class="para rdfs-comment"> Set the effective group ID of the current process. This is a privileged function and needs appropriate privileges (usually root) on the system to be able to perform this function. </p> </div> <div class="refsect1 parameters" id="refsect1-function.posix-setegid-parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><em><code class="parameter">gid</code></em></span> <dd> <p class="para"> The group id. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues" id="refsect1-function.posix-setegid-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns <strong><code>TRUE</code></strong> on success or <strong><code>FALSE</code></strong> on failure. </p> </div> <div class="refsect1 examples" id="refsect1-function.posix-setegid-examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example" id="example-3668"> <p><strong>Example #1 <span class="function"><strong>posix_setegid()</strong></span> example</strong></p> <div class="example-contents"><p> This example will print out the effective group id, once changed. </p></div> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br /></span><span style="color: #007700">echo </span><span style="color: #DD0000">'My real group id is '</span><span style="color: #007700">.</span><span style="color: #0000BB">posix_getgid</span><span style="color: #007700">(); </span><span style="color: #FF8000">//20<br /></span><span style="color: #0000BB">posix_setegid</span><span style="color: #007700">(</span><span style="color: #0000BB">40</span><span style="color: #007700">);<br />echo </span><span style="color: #DD0000">'My real group id is '</span><span style="color: #007700">.</span><span style="color: #0000BB">posix_getgid</span><span style="color: #007700">(); </span><span style="color: #FF8000">//20<br /></span><span style="color: #007700">echo </span><span style="color: #DD0000">'My effective group id is '</span><span style="color: #007700">.</span><span style="color: #0000BB">posix_getegid</span><span style="color: #007700">(); </span><span style="color: #FF8000">//40<br /></span><span style="color: #0000BB">?></span> </span> </code></div> </div> </div> </p> </div> <div class="refsect1 seealso" id="refsect1-function.posix-setegid-seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"> <span class="function"><a href="function.posix-getgrgid.html" class="function" rel="rdfs-seeAlso">posix_getgrgid()</a> - Return info about a group by group id</span></li> <li class="member"> <span class="function"><a href="function.posix-getgid.html" class="function" rel="rdfs-seeAlso">posix_getgid()</a> - Return the real group ID of the current process</span></li> <li class="member"> <span class="function"><a href="function.posix-setgid.html" class="function" rel="rdfs-seeAlso">posix_setgid()</a> - Set the GID of the current process</span></li> </ul> </p> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.posix-mknod.html">posix_mknod</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.posix-seteuid.html">posix_seteuid</a></div> <div class="up"><a href="ref.posix.html">POSIX Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>